FieldControl<T> class

Inheritance
Implementers
Available Extensions

Constructors

FieldControl([T? value])
Initializes control and Stream with default value.
FieldControl.of(Stream stream, {T? initValue, Function? onError, void onDone()?, bool cancelOnError = false, ValueConverter<T>? converter})
Initializes FieldControl and subscribes it to given stream. Check subscribeTo function for more info.
factory

Properties

hashCode → int
The hash code for this object.
no setterinherited
internalData ↔ dynamic
getter/setter pairinherited
isActive → bool
Checks if Stream is not closed.
no setteroverride
isClosed → bool
Returns true if current stream is closed.
no setter
isEmpty → bool
no setterinherited
isNotEmpty → bool
no setterinherited
isValid → bool
no setteroverride
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
sink → Sink<T>
Default sink of this controller. Use sinkConverter to convert input data.
no setter
stream → Stream<T?>
no setter
value ↔ T?
getter/setter pairinherited-setteroverride-getter

Methods

cancel(ControlSubscription<T?> subscription) → void
override
cast<U>() → ObservableValue<U>
inherited
dispose() → void
Used to clear and dispose object. After this method call is object typically unusable and ready for GC. Can be called multiple times!
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
notify() → void
Notifies current Stream.
override
onFuture(Future future, {ValueConverter? converter}) → Future
Sets value after future finishes. Via ValueConverter is possible to convert object from input Stream type to own stream value. Returns Future to await and register other callbacks.
setValue(T? value, {bool notify = true, bool forceNotify = false}) → void
override
sinkConverter(ValueConverter<T> converter) → Sink
Returns Sink with custom ValueConverter.
softDispose() → void
Clears subscribers, but didn't close Stream entirely.
subscribe(ValueCallback<T?> action, {bool current = true, dynamic args}) → FieldSubscription<T>
override
subscribeStream(void onData(T? event), {Function? onError, void onDone()?, bool cancelOnError = false, bool current = true}) → FieldSubscription<T>
subscribeTo(Stream stream, {Function? onError, void onDone()?, bool cancelOnError = false, ValueConverter? converter}) → FieldSubscription
Subscribes this field to given Stream. Controller will subscribe to input stream and will listen for changes and populate this changes into own stream. Via ValueConverter is possible to convert object from input Stream type to own stream value. StreamSubscription is automatically closed during dispose phase of FieldControl. Returns FieldSubscription for manual cancellation.
toString() → String
A string representation of this object.
override

Operators

operator ==(Object other) → bool
The equality operator.
inherited